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Digital Electronics

Digital Electronics
Which of the following is a digital device

 Resistance of a material
 Light switch
 Regulator of a fan
 Microphone

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Digital Electronics
F’s complement of (2BFD)Hex is

 E304
 D402
 D403
 C403

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Digital Electronics
Which of the following gates cannot be used as an inverter?

 AND
 NAND
 NOR
 X-NOR

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Digital Electronics
A half adder has

 1 input and 2 outputs
 2 inputs and 1 outputs
 1 input and 1 output
 2 inputs and 2 output

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Digital Electronics
A + Ā is equal to

 0
 Ā
 A
 1

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Digital Electronics
In Boolean algebra, OR is represented by

 ×
 -
 +
 /

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